Hi all; I'm seeing a strange problem. I have a UML kernel that was compiled on a Red Hat 8.0 host system (kernel 2.4.18-19.8.0--I know, old eh? :-/). The UML kernel is 2.4.22.
When I run the UML instance on any Red Hat 8.0 host system, it works fine. When I take the SAME UML kernel and SAME root filesystem, etc., and run it on a Red Hat Enterprise Linux 3 system, it works _almost_ fine. But there are some odd things. Not all of them I've tracked down (some could be something with our environment), but here's one I have: I compile valgrind 2.4.0 against the contents of the UML rootfs, and then run it from inside UML on the RH8.0 host, and it works fine on the RH8.0 host system. I take that exact same compilation of valgrind (and same rootfs, same UML kernel) and start it on the RHEL host system, and when I use the memcheck tool (the default) it dumps core inside valgrind, in a strange way. No matter what app I try to use it with: even something like "valgrind /bin/echo hi". The other valgrind tools (addrcheck, etc.) all seem to work fine, and most other basic tools. I'm pursuing this with the valgrind folks as well, but given the situation I have to assume it's some kind of interaction between the UML kernel process and the host distribution: either the kernel, or libc, or something. I didn't expect that the UML kernel would need to be recompiled for different host systems, at least not in general. Is this an expected situation that I need to look out for, or is this unusual and normally I wouldn't have to do this? Other ideas/thoughts? -- ------------------------------------------------------------------------------- Paul D. Smith <[EMAIL PROTECTED]> HASMAT: HA Software Mthds & Tools "Please remain calm...I may be mad, but I am a professional." --Mad Scientist ------------------------------------------------------------------------------- These are my opinions---Nortel Networks takes no responsibility for them. ------------------------------------------------------- SF email is sponsored by - The IT Product Guide Read honest & candid reviews on hundreds of IT Products from real users. Discover which products truly live up to the hype. Start reading now. http://ads.osdn.com/?ad_id=6595&alloc_id=14396&op=click _______________________________________________ User-mode-linux-user mailing list User-mode-linux-user@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/user-mode-linux-user
